Honeywell L4079B1041 Manual Reset 10-150Psi Pressuretrol Openhigh

The Honeywell L4079B1041 is a pressure control switch (sometimes known as a Pressuretrol) intended primarily for HVAC systems.  It acts as an essential safety precaution, carefully monitoring and controlling pressure between 10 and 150 psi. If the pressure rises above the set point, the switch immediately initiates a "high open" operation, which cuts off the system's power and prevents further damage. Precise operation is guaranteed by its dependable snap-acting mechanism and single-pole, single-throw (SPST) arrangement. Pressure-sensitive applications such as boilers, furnaces, chillers, and other HVAC equipment that use steam, air, non-flammable gasses, and non-corrosive fluids can benefit from the L4079B1041. With its robust stainless steel diaphragm that ensures long-lasting performance, its manual reset feature makes reactivation after a pressure surge easier. As a versatile pressure control switch, it offers peace of mind by safeguarding HVAC systems against harmful over-pressure conditions.